112 Panama Shells. STROMBID^. Habitat—Unknown ; Wood. Peru; Gray. Mazatlan ; Kiener: also Duclos. Sea of California ; Deshayes. Gulf of Nicoya; Cuming! Eeeve. Pacific Ocean; Kiister. Mazatlan; Melchers 1 Menke. Gulf of Nicoya & California; Jay. Taboga; C. B. A. I Many fragments only of this shell were seen, 123, Strombus gracilior. Synonymy.Strombus gracilior Sowb. in Tant. Catal. No. 1792. p. 20. 1825. Wood Ind. Test. Supp. pi. 4. f. 1. 1828. Sowb. Thes. Conch, p. 32. No. 35. pi. 8. f. 73. 1842. Kiener Iconog. p. 31. pi. 21. f. 1. Lam. An. sans Vert. IX. 713. No. 36. (Desh. ed.) . - 1843. Duclos in Chenu 111. Conch, pi. 17. f. 6, 7. 1843. Lam. An. sans Vert. III. p. 752. No. 36. (Desh. ed. tert.) - 1844. Kiist. Conch. Cab. p. 36. pi. 4a, f. 6, 7. 1845. Reeve Conch. Icon. pi. 16. f. 38. Jan. 1851. Station.—Sandy mud at a depth of from 6 to 10 fathoms; Cuming 1 Eeeve. Habitat—Unknown; Wood; also Duclos. South Seas; Sowerby. Shore of California; Kiener: also Kiister. Seas of California; Deshayes. St. Elena & Panama, Central America; Cuming I Eeeve. Mazatlan ; Melchers! Menke. California & Tahiti; Jay.